You're reading the documentation for a version of ROS 2 that has reached its EOL (end-of-life), and is no longer officially supported. If you want up-to-date information, please have a look at Iron.


Controller for mobile robots with differential drive. Input for control are robot body velocity commands which are translated to wheel commands for the differential drive base. Odometry is computed from hardware feedback and published.

Velocity commands

The controller works with a velocity twist from which it extracts the x component of the linear velocity and the z component of the angular velocity. Velocities on other components are ignored.

Hardware interface type

The controller works with wheel joints through a velocity interface.

Other features

Realtime-safe implementation. Odometry publishing Task-space velocity, acceleration and jerk limits Automatic stop after command time-out